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2012-06-25config: read (but not write) from $XDG_CONFIG_HOME/git/config fileHuynh Khoi Nguyen Nguyen
Teach git to read the "gitconfig" information from a new location, $XDG_CONFIG_HOME/git/config; this allows the user to avoid cluttering $HOME with many per-application configuration files. In the order of reading, this file comes between the global configuration file (typically $HOME/.gitconfig) and the system wide configuration file (typically /etc/gitconfig). We do not write to this new location (yet). If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/config will be used. This is in line with XDG specification. If the new file does not exist, the behavior is unchanged. Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr> Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr> Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr> Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr> Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-03standardize and improve lookup rules for external local reposJeff King
When you specify a local repository on the command line of clone, ls-remote, upload-pack, receive-pack, or upload-archive, or in a request to git-daemon, we perform a little bit of lookup magic, doing things like looking in working trees for .git directories and appending ".git" for bare repos. For clone, this magic happens in get_repo_path. For everything else, it happens in enter_repo. In both cases, there are some ambiguous or confusing cases that aren't handled well, and there is one case that is not handled the same by both methods. This patch tries to provide (and test!) standard, sensible lookup rules for both code paths. The intended changes are: 1. When looking up "foo", we have always preferred a working tree "foo" (containing "foo/.git" over the bare "foo.git". But we did not prefer a bare "foo" over "foo.git". With this patch, we do so. 2. We would select directories that existed but didn't actually look like git repositories. With this patch, we make sure a selected directory looks like a git repo. Not only is this more sensible in general, but it will help anybody who is negatively affected by change (1) negatively (e.g., if they had "foo.git" next to its separate work tree "foo", and expect to keep finding "foo.git" when they reference "foo"). 3. The enter_repo code path would, given "foo", look for "foo.git/.git" (i.e., do the ".git" append magic even for a repo with working tree). The clone code path did not; with this patch, they now behave the same. In the unlikely case of a working tree overlaying a bare repo (i.e., a ".git" directory _inside_ a bare repo), we continue to treat it as a working tree (prefering the "inner" .git over the bare repo). This is mainly because the combination seems nonsensical, and I'd rather stick with existing behavior on the off chance that somebody is relying on it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-04Learn to handle gitfiles in enter_repoPhil Hord
The enter_repo() function is used to navigate into a .git directory. It knows how to find standard alternatives (DWIM) but it doesn't handle gitfiles created by git init --separate-git-dir. This means that git-fetch and others do not work with repositories using the separate-git-dir mechanism. Teach enter_repo() to deal with the gitfile mechanism by resolving the path to the redirected path and continuing tests on that path instead of the found file. Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-04enter_repo: do not modify inputErik Faye-Lund
entr_repo(..., 0) currently modifies the input to strip away trailing slashes. This means that we some times need to copy the input to keep the original. Change it to unconditionally copy it into the used_path buffer so we can safely use the input without having to copy it. Also store a working copy in validated_path up-front before we start resolving anything. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22read_gitfile_gently(): rename misnamed function to read_gitfile()Junio C Hamano
The function was not gentle at all to the callers and died without giving them a chance to deal with possible errors. Rename it to read_gitfile(), and update all the callers. As no existing caller needs a true "gently" variant, we do not bother adding one at this point. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-17Name make_*_path functions more accuratelyCarlos Martín Nieto
Rename the make_*_path functions so it's clearer what they do, in particlar make clear what the differnce between make_absolute_path and make_nonrelative_path is by renaming them real_path and absolute_path respectively. make_relative_path has an understandable name and is renamed to relative_path to maintain the name convention. The function calls have been replaced 1-to-1 in their usage. Signed-off-by: Carlos Martín Nieto <cmn@elego.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-10path helpers: move git_mkstemp* to wrapper.cJonathan Nieder
git_mkstemp_mode and related functions do not require access to specialized git machinery, unlike some other functions from path.c (like set_shared_perm()). Move them to wrapper.c where the wrapper xmkstemp_mode is defined. This eliminates a dependency of wrapper.o on environment.o via path.o. With typical linkers (e.g., gcc), that dependency makes programs that use functions from wrapper.o and not environment.o or path.o larger than they need to be. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-22Merge branch 'hv/submodule-find-ff-merge'Junio C Hamano
* hv/submodule-find-ff-merge: Implement automatic fast-forward merge for submodules setup_revisions(): Allow walking history in a submodule Teach ref iteration module about submodules Conflicts: submodule.c
2010-07-27Sync with 1.7.0 seriesJunio C Hamano
2010-07-27config --get --path: check for unset $HOMEJonathan Nieder
If $HOME is unset (as in some automated build situations), currently git config --path path.home "~" git config --path --get path.home segfaults. Error out with Failed to expand user dir in: '~/' instead. Reported-by: Julien Cristau <jcristau@debian.org> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-07Teach ref iteration module about submodulesHeiko Voigt
We will use this in a later patch to extend setup_revisions() to load revisions directly from a submodule. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-08Merge branch 'mm/mkstemps-mode-for-packfiles' into maintJunio C Hamano
* mm/mkstemps-mode-for-packfiles: Use git_mkstemp_mode instead of plain mkstemp to create object files git_mkstemps_mode: don't set errno to EINVAL on exit. Use git_mkstemp_mode and xmkstemp_mode in odb_mkstemp, not chmod later. git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument. Move gitmkstemps to path.c Add a testcase for ACL with restrictive umask.
2010-03-07Merge branch 'nd/root-git'Junio C Hamano
* nd/root-git: Add test for using Git at root of file system Support working directory located at root Move offset_1st_component() to path.c init-db, rev-parse --git-dir: do not append redundant slash make_absolute_path(): Do not append redundant slash Conflicts: setup.c sha1_file.c
2010-03-07Merge branch 'mm/mkstemps-mode-for-packfiles'Junio C Hamano
* mm/mkstemps-mode-for-packfiles: Use git_mkstemp_mode instead of plain mkstemp to create object files git_mkstemps_mode: don't set errno to EINVAL on exit. Use git_mkstemp_mode and xmkstemp_mode in odb_mkstemp, not chmod later. git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument. Move gitmkstemps to path.c Add a testcase for ACL with restrictive umask.
2010-02-22git_mkstemps_mode: don't set errno to EINVAL on exit.Matthieu Moy
When reaching the end of git_mkstemps_mode, at least one call to open() has been done, and errno has been set accordingly. Setting errno is therefore not necessary, and actually harmfull since callers can't distinguish e.g. permanent failure from ENOENT, which can just mean that we need to create the containing directory. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument.Matthieu Moy
gitmkstemps emulates the behavior of mkstemps, which is usually used to create files in a shared directory like /tmp/, hence, it creates files with permission 0600. Add git_mkstemps_mode() that allows us to specify the desired mode, and make git_mkstemps() a wrapper that always uses 0600 to call it. Later we will use git_mkstemps_mode() when creating pack files. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22Move gitmkstemps to path.cMatthieu Moy
This function used to be only a compatibility function, but we're going to extend it and actually use it, so make it part of Git. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-17Merge branch 'jc/typo'Junio C Hamano
* jc/typo: Typofixes outside documentation area
2010-02-16Move offset_1st_component() to path.cNguyễn Thái Ngọc Duy
The implementation is also lightly modified to use is_dir_sep() instead of hardcoding '/'. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-06setenv(GIT_DIR) clean-upRené Scharfe
This patch converts the setenv() calls in path.c and setup.c. After the call, git grep with a pager works again in bare repos. It leaves the setenv(GIT_DIR_ENVIRONMENT, ...) calls in git.c alone, as they respond to command line switches that emulate the effect of setting the environment variable directly. The remaining site in environment.c is in set_git_dir() and is left alone, too, of course. Finally, builtin-init-db.c is left changed because the repo is still being carefully constructed when the environment variable is set. This fixes git shortlog when run inside a git directory, which had been broken by abe549e1. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-04Typofixes outside documentation areaJunio C Hamano
begining -> beginning canonicalizations -> canonicalization comand -> command dewrapping -> unwrapping dirtyness -> dirtiness DISCLAMER -> DISCLAIMER explicitely -> explicitly feeded -> fed impiled -> implied madatory -> mandatory mimick -> mimic preceeding -> preceding reqeuest -> request substition -> substitution Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22ignore duplicated slashes in make_relative_path()Junio C Hamano
The function takes two paths, an early part of abs is supposed to match base; otherwise abs is not a path under base and the function returns the full path of abs. The caller can easily confuse the implementation by giving duplicated and needless slashes in these path arguments. Credit for test script, motivation and initial patch goes to Thomas Rast. A follow-up fix (squashed) is by Hannes. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-23Merge branch 'mm/config-pathname-tilde-expand'Junio C Hamano
* mm/config-pathname-tilde-expand: Documentation: avoid xmlto input error expand_user_path: expand ~ to $HOME, not to the actual homedir. Expand ~ and ~user in core.excludesfile, commit.template
2009-11-19expand_user_path: expand ~ to $HOME, not to the actual homedir.Matthieu Moy
In 395de250d (Expand ~ and ~user in core.excludesfile, commit.template), we introduced the mechanism. But expanding ~ using getpw is not what people overriding $HOME would usually expect. In particular, git looks for the user's .gitconfig using $HOME, so it's better to be consistent. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-18Expand ~ and ~user in core.excludesfile, commit.templateMatthieu Moy
These config variables are parsed to substitute ~ and ~user with getpw entries. user_path() refactored into new function expand_user_path(), to allow dynamically allocating the return buffer. Original patch by Karl Chen, modified by Matthieu Moy, and further amended by Junio C Hamano. Signed-off-by: Karl Chen <quarl@quarl.org> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10http-backend: Protect GIT_PROJECT_ROOT from /../ requestsShawn O. Pearce
Eons ago HPA taught git-daemon how to protect itself from /../ attacks, which Junio brought back into service in d79374c7b58d ("daemon.c and path.enter_repo(): revamp path validation"). I did not carry this into git-http-backend as originally we relied only upon PATH_TRANSLATED, and assumed the HTTP server had done its access control checks to validate the resolved path was within a directory permitting access from the remote client. This would usually be sufficient to protect a server from requests for its /etc/passwd file by http://host/smart/../etc/passwd sorts of URLs. However in 917adc036086 Mark Lodato added GIT_PROJECT_ROOT as an additional method of configuring the CGI. When this environment variable is used the web server does not generate the final access path and therefore may blindly pass through "/../etc/passwd" in PATH_INFO under the assumption that "/../" might have special meaning to the invoked CGI. Instead of permitting these sorts of malformed path requests, we now reject them back at the client, with an error message for the server log. This matches git-daemon behavior. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-01diff: generate pretty filenames in prep_temp_blob()David Aguilar
Naturally, prep_temp_blob() did not care about filenames. As a result, GIT_EXTERNAL_DIFF and textconv generated filenames such as ".diff_XXXXXX". This modifies prep_temp_blob() to generate user-friendly filenames when creating temporary files. Diffing "name.ext" now generates "XXXXXX_name.ext". Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-28set_shared_perm(): sometimes we know what the final mode bits should look likeJunio C Hamano
adjust_shared_perm() first obtains the mode bits from lstat(2), expecting to find what the result of applying user's umask is, and then tweaks it as necessary. When the file to be adjusted is created with mkstemp(3), however, the mode thusly obtained does not have anything to do with user's umask, and we would need to start from 0444 in such a case and there is no point running lstat(2) for such a path. This introduces a new API set_shared_perm() to bypass the lstat(2) and instead force setting the mode bits to the desired value directly. adjust_shared_perm() becomes a thin wrapper to the function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-28"core.sharedrepository = 0mode" should set, not loosenJunio C Hamano
This fixes the behaviour of octal notation to how it is defined in the documentation, while keeping the traditional "loosen only" semantics intact for "group" and "everybody". Three main points of this patch are: - For an explicit octal notation, the internal shared_repository variable is set to a negative value, so that we can tell "group" (which is to "OR" in 0660) and 0660 (which is to "SET" to 0660); - git-init did not set shared_repository variable early enough to affect the initial creation of many files, notably copied templates and the configuration. We set it very early when a command-line option specifies a custom value. - Many codepaths create files inside $GIT_DIR by various ways that all involve mkstemp(), and then call move_temp_to_file() to rename it to its final destination. We can add adjust_shared_perm() call here; for the traditional "loosen-only", this would be a no-op for many codepaths because the mode is already loose enough, but with the new behaviour it makes a difference. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-20Introduce the function strip_path_suffix()Johannes Schindelin
The function strip_path_suffix() will try to strip a given suffix from a given path. The suffix must start at a directory boundary (i.e. "core" is not a path suffix of "libexec/git-core", but "git-core" is). Arbitrary runs of directory separators ("slashes") are assumed identical. Example: strip_path_suffix("C:\\msysgit/\\libexec\\git-core", "libexec///git-core", &prefix) will set prefix to "C:\\msysgit" and return 0. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-12Revert "validate_headref: tighten ref-matching to just branches"Junio C Hamano
This reverts commit b229d18a809c169314b7f0d048dc5a7632e8f916, at least until we figure out how to work better with TopGit that points HEAD to refs/top-bases/ hierarchy.
2009-02-11Merge branch 'js/maint-1.6.0-path-normalize'Junio C Hamano
* js/maint-1.6.0-path-normalize: Remove unused normalize_absolute_path() Test and fix normalize_path_copy() Fix GIT_CEILING_DIRECTORIES on Windows Move sanitary_path_copy() to path.c and rename it to normalize_path_copy() Make test-path-utils more robust against incorrect use
2009-02-07Remove unused normalize_absolute_path()Johannes Sixt
This function is now superseded by normalize_path_copy(). Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-07Test and fix normalize_path_copy()Johannes Sixt
This changes the test-path-utils utility to invoke normalize_path_copy() instead of normalize_absolute_path() because the latter is about to be removed. The test cases in t0060 are adjusted in two regards: - normalize_path_copy() more often leaves a trailing slash in the result. This has no negative side effects because the new user of this function, longest_ancester_length(), already accounts for this behavior. - The function can fail. The tests uncover a flaw in normalize_path_copy(): If there are sufficiently many '..' path components so that the root is reached, such as in "/d1/s1/../../d2", then the leading slash was lost. This manifested itself that (assuming there is a repository at /tmp/foo) $ git add /d1/../tmp/foo/some-file reported 'pathspec is outside repository'. This is now fixed. Moreover, the test case descriptions of t0060 now include the test data and expected outcome. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-07Fix GIT_CEILING_DIRECTORIES on WindowsRené Scharfe
Using git with GIT_CEILING_DIRECTORIES crashed on Windows due to a failed assertion in normalize_absolute_path(): This function expects absolute paths to start with a slash, while on Windows they can start with a drive letter or a backslash. This fixes it by using the alternative, normalize_path_copy() instead, which can handle Windows-style paths just fine. Secondly, the portability macro PATH_SEP is used instead of expecting colons to be used as path list delimiter. The test script t1504 is also changed to help MSYS's bash recognize some program arguments as path list. (MSYS's bash must translate POSIX-style path lists to Windows-style path lists, and the heuristic did not catch some cases.) Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-07Move sanitary_path_copy() to path.c and rename it to normalize_path_copy()Johannes Sixt
This function and normalize_absolute_path() do almost the same thing. The former already works on Windows, but the latter crashes. In subsequent changes we will remove normalize_absolute_path(). Here we make the replacement function reusable. On the way we rename it to reflect that it does some path normalization. Apart from that this is only moving around code. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-29validate_headref: tighten ref-matching to just branchesJeff King
When we are trying to determine whether a directory contains a git repository, one of the tests we do is to check whether HEAD is either a symlink or a symref into the "refs/" hierarchy, or a detached HEAD. We can tighten this a little more, though: a non-detached HEAD should always point to a branch (since checking out anything else should result in detachment), so it is safe to check for "refs/heads/". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-11Fix non-literal format in printf-style callsDaniel Lowe
These were found using gcc 4.3.2-1ubuntu11 with the warning: warning: format not a string literal and no format arguments Incorporated suggestions from Brandon Casey <casey@nrlssc.navy.mil>. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-09Merge branch 'ar/maint-mksnpath' into maintJunio C Hamano
* ar/maint-mksnpath: Use git_pathdup instead of xstrdup(git_path(...)) git_pathdup: returns xstrdup-ed copy of the formatted path Fix potentially dangerous use of git_path in ref.c Add git_snpath: a .git path formatting routine with output buffer Fix potentially dangerous uses of mkpath and git_path Fix mkpath abuse in dwim_ref and dwim_log of sha1_name.c Add mksnpath which allows you to specify the output buffer Conflicts: builtin-revert.c rerere.c
2008-11-02fix overlapping memcpy in normalize_absolute_pathJeff King
The comments for normalize_absolute_path explicitly claim that the source and destination buffers may be the same (though they may not otherwise overlap). Thus the call to memcpy may involve copying overlapping data, and memmove should be used instead. This fixes a valgrind error in t1504. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-31git_pathdup: returns xstrdup-ed copy of the formatted pathAlex Riesen
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-31Add git_snpath: a .git path formatting routine with output bufferAlex Riesen
The function's purpose is to replace git_path where the buffer of formatted path may not be reused by subsequent calls of the function or will be copied anyway. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-27Add mksnpath which allows you to specify the output bufferAlex Riesen
This is just vsnprintf's but additionally calls cleanup_path() on the result. To be used as alternatives to mkpath() where the buffer for the created path may not be reused by subsequent calls of the same formatting function. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-11Fix typo in comments of longest_ancestor_length()Nguyễn Thái Ngọc Duy
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-26Allow add_path() to add non-existent directories to the pathJohannes Sixt
This function had used make_absolute_path(); but this function dies if the directory that contains the entry whose relative path was supplied in the argument does not exist. This is a problem if the argument is, for example, "../libexec/git-core", and that "../libexec" does not exist. Since the resolution of symbolic links is not required for elements in PATH, we can fall back to using make_nonrelative_path(), which simply prepends $PWD to the path. We have to move make_nonrelative_path() alongside make_absolute_path() in abspath.c so that git-shell can be linked. See 5b8e6f85f. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13Merge branch 'maint' to sync with 1.5.6.3Junio C Hamano
* maint: GIT 1.5.6.3 git-am: Do not exit silently if committer is unset t0004: fix timing bug git-mailinfo: document the -n option Fix backwards-incompatible handling of core.sharedRepository
2008-07-12Fix backwards-incompatible handling of core.sharedRepositoryPetr Baudis
06cbe85 (Make core.sharedRepository more generic, 2008-04-16) broke the traditional setting of core.sharedRepository to true, which was to make the repository group writable: with umask 022, it would clear the permission bits for 'other'. (umask 002 did not exhibit this behaviour since pre-chmod() check in adjust_shared_perm() fails in that case.) The call to adjust_shared_perm() should only loosen the permission. If the user has umask like 022 or 002 that allow others to read, the resulting files should be made readable and writable by group, without restricting the readability by others. This patch fixes the adjust_shared_perm() mode tweak based on Junio's suggestion and adds the appropriate tests to t/t1301-shared-repo.sh. Cc: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-07Merge branch 'dr/ceiling'Junio C Hamano
* dr/ceiling: Eliminate an unnecessary chdir("..") Add support for GIT_CEILING_DIRECTORIES Fold test-absolute-path into test-path-utils Implement normalize_absolute_path Conflicts: cache.h setup.c
2008-06-28shrink git-shell by avoiding redundant dependenciesDmitry Potapov
A lot of modules that have nothing to do with git-shell functionality were linked in, bloating git-shell more than 8 times. This patch cuts off redundant dependencies by: 1. providing stubs for three functions that make no sense for git-shell; 2. moving quote_path_fully from environment.c to quote.c to make the later self sufficient; 3. moving make_absolute_path into a new separate file. The following numbers have been received with the default optimization settings on master using GCC 4.1.2: Before: text data bss dec hex filename 143915 1348 93168 238431 3a35f git-shell After: text data bss dec hex filename 17670 788 8232 26690 6842 git-shell Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19Make git_dir a path relative to work_tree in setup_work_tree()Linus Torvalds
Once we find the absolute paths for git_dir and work_tree, we can make git_dir a relative path since we know pwd will be work_tree. This should save the kernel some time traversing the path to work_tree all the time if git_dir is inside work_tree. Daniel's patch didn't apply for me as-is, so I recreated it with some differences, and here are the numbers from ten runs each. There is some IO for me - probably due to more-or-less random flushing of the journal - so the variation is bigger than I'd like, but whatever: Before: real 0m8.135s real 0m7.933s real 0m8.080s real 0m7.954s real 0m7.949s real 0m8.112s real 0m7.934s real 0m8.059s real 0m7.979s real 0m8.038s After: real 0m7.685s real 0m7.968s real 0m7.703s real 0m7.850s real 0m7.995s real 0m7.817s real 0m7.963s real 0m7.955s real 0m7.848s real 0m7.969s Now, going by "best of ten" (on the assumption that the longer numbers are all due to IO), I'm saying a 7.933s -> 7.685s reduction, and it does seem to be outside of the noise (ie the "after" case never broke 8s, while the "before" case did so half the time). So looks like about 3% to me. Doing it for a slightly smaller test-case (just the "arch" subdirectory) gets more stable numbers probably due to not filling the journal with metadata updates, so we have: Before: real 0m1.633s real 0m1.633s real 0m1.633s real 0m1.632s real 0m1.632s real 0m1.630s real 0m1.634s real 0m1.631s real 0m1.632s real 0m1.632s After: real 0m1.610s real 0m1.609s real 0m1.610s real 0m1.608s real 0m1.607s real 0m1.610s real 0m1.609s real 0m1.611s real 0m1.608s real 0m1.611s where I'ld just take the averages and say 1.632 vs 1.610, which is just over 1% peformance improvement. So it's not in the noise, but it's not as big as I initially thought and measured. (That said, it obviously depends on how deep the working directory path is too, and whether it is behind NFS or something else that might need to cause more work to look up). Signed-off-by: Junio C Hamano <gitster@pobox.com>